公开(公告)号：US5670098A

公开(公告)日：1997-09-23

申请号：US707199

申请日：1996-08-20

申请人： David R. Dillehay ,  David W. Turner ,  Jim Blackwell

发明人： David R. Dillehay ,  David W. Turner ,  Jim Blackwell

IPC分类号： C06B21/00 ,  C06B31/06

CPC分类号： C06B21/0075 ,  C06B31/06

摘要： A continuous process of manufacturing black powder and black powder substitute using a twin screw extruder is disclosed. Guar gum mixed with the composition at a concentration in the range from 0.05% to 0.5%, by weight, dramatically reduced the friction in the dies and permitted extrusion of the powder at much lower water levels. Different size dies used in combination with face cutting of the extruded strands produce various sized granules. The process can be operated remotely and automatically. The process reduces the number of buildings, equipment and personnel required to manufacture black powder or black powder substitute. The process produces more uniform and reproducible particle sizes.

摘要翻译： 公开了使用双螺杆挤出机制造黑色粉末和黑色粉末代用品的连续方法。 瓜尔胶与组合物以0.05重量％至0.5重量％的浓度混合，显着降低了模具中的摩擦，并允许粉末在较低水平下挤出。 与挤出的股线的面切割组合使用的不同尺寸的模具产生各种尺寸的颗粒。 该过程可以远程和自动进行。 该过程减少了制造黑色粉末或黑色粉末替代品所需的建筑物，设备和人员的数量。 该方法产生更均匀和可重复的粒度。